Massive cystic ureteral diverticula in infancy.

Area of Science:

• Pediatric Urology
• Congenital Abnormalities
• Ureteral Diseases

Background:

• Massive abdominal distension in infants can stem from various causes, including urinary tract anomalies.
• Ureteral diverticula are uncommon outpouchings of the ureter, with mid-ureteral locations being particularly rare.

Observation:

• Two neonates presented with significant abdominal distension.
• Case 1: A 1-year-old boy with a mid ureteral diverticulum and a chronically scarred, atrophied kidney.
• Case 2: A female newborn with a mid ureteral diverticulum associated with a duplicated ureter system (upper pole).

Findings:

• This is the first reported instance of mid ureteral diverticulum presenting with massive abdominal distension in neonates.
• The condition was associated with distinct renal and ureteral malformations in both pediatric cases.
• The specific association with a duplicated system and scarred kidney is novel.

Implications:

• Highlights the importance of considering rare ureteral anomalies in the differential diagnosis of neonatal abdominal distension.
• Suggests a potential link between mid ureteral diverticula and other congenital urinary tract abnormalities.
• Underscores the need for further investigation into the embryology and clinical significance of mid ureteral diverticula in pediatric patients.